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OMG, Gia Kim & Sang Heon Lee From ‘XO, Kitty’ Are Siblings

If you watched the hit To All the Boys I’ve Loved Before trilogy on Netflix and you were obsessed, you’re in for a real treat. XO, Kitty just released on the streamer on May 18 — a romantic dramedy series and spinoff of To All the Boys. The best part is that two of the stars — Yuri and Min Ho, played by Gia Kim and Sang Heon Lee — are siblings in real life. 

XO, Kitty is a 10-part series that follows 16-year-old Kitty (Lara Jean Covey’s younger sister, played by Anna Cathcart), who enrolls in the Korean Independent School of Seoul without telling her long distance boyfriend, Dae (Minyeong Choi), who also attends the school. When she shows up, he’s surprised — and so is she. Dae has a girlfriend, Yuri. No one was ready for this plot twist while following the new adventure of Covey’s younger sister.

Gia Kim & Sang Heon Lee Characters

While crowd-favorite Lara Jean (played by Lana Condor) is unfortunately not in this series, which takes place a few years after To All the Boys ends, there are plenty of great new characters. Yuri and Min Ho are two such characters — siblings who each play very critical roles. Yuri is a fashionable and confident girl who recently transferred schools, but she doesn’t steal the whole show. She shares it with Min Ho. Min Ho, also a style icon in his own right, is Dae’s best friend, who starts as Kitty’s arch nemesis and turns into something more.

Yet, not even the cast knew in the beginning of filming that the two stars were related. Choi told Teen Vogue the cast found out about it via text. The internet and XO, Kitty fans remain shocked — although some fans have now picked up on the fact that both Kim and Lee have the Hong Kong and South Korean flags in their Instagram bios.  

Kim is 29 years old, with an Instagram fan base of over 822,000 followers. Lee is 26 years old and boasts 3 million followers on the app.

The show will surely grow even more in popularity, as more and more people get a chance to watch the spinoff — along with the spunk, the drama, and the sheer talent these two siblings bring to the series.

Maddie Solomon is a writer for Her Campus, where she reports on pop culture, travel and local adventures, national style trends, and more. She is a writer, advocate, and Jewish professional interested more broadly in community building, social justice, and civil rights. Maddie graduated from Occidental College in 2021, where she majored in Political Science with an Education minor. Her work has been published in The Denver Post, Women's Media Center, The Jewish Journal, Persephone's Daughters, amongst other publications. Maddie grew up in Denver, and carries her college experiences in Los Angeles – the land of sunsets, tacos, and oceans. She moved to Boston last summer to explore a new East Coast post-grad life and lives in a Moishe house. In her free time, she enjoys coffee hopping, going to concerts, soul cycle, Shabbat dinner parties and bringing people together, traveling, and exploring Boston with her friends.